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Author archives: Hella

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    Vauxhall Zafira B – Recirculation air flap malfunction

    In the above vehicles, a damaged drive (Figure 1) between the recirculation air flap shaft and the recirculation air flap itself can lead to a malfunction

    April
    7
    2016

    Toyota Auris Hybrid – Reduced drive power (emergency operation mode)

    The complaint has been made that the warning lights in the instrument cluster light up and emergency operation mode is activated when the above vehicles are in motion.

    March
    24
    2016

    PEUGEOT 307 / 308 / Expert – Malfunction of the lighting system

    The light switch position in the above vehicles may not be detected by the control electronics in certain cases. If this happens, the lighting system may not switch on due to faulty software.

    March
    16
    2016

    Toyota Verso-S – Smoke generation

    Smoke generation may be experienced when driving one of the vehicles listed above. Engine oil can collect in the charge-air cooler and get into the combustion chamber, thus causing smoke to be generated during operation

    March
    3
    2016

    Technical Information – Damper weights on the brake caliper

    When a moving vehicle brakes, oscillations occur at the brake caliper. These oscillations generate vibrations, which can lead to unpleasant breaking noises. In order to dampen (eliminate) these unwanted oscillations, additional weights are attached to the component in question. These weights are known as damper weights.

    January
    4
    2016

    Why do hybrids use high voltage A/C compressors?

    Vehicles with full-hybrid technology use high voltage compressors that are not dependent on the running of the combustion engine. This makes for greater A/C comfort in such vehicles. A vehicle’s interior that has become overheated can now be cooled down to the desired temperature before the start of any journey by using a remote control. …

    July
    27
    2015

    Opel Astra J – loss of coolant

    The Opel Astra J can experience a loss of coolant near the exhaust gas recirculation cooler (EGR cooler). Here Hella Ireland offers some tips on fixing the problem. If you suspect a leak in the cooling system, special attention should be paid to the EGR cooler. A crack in the housing can lead to a …

    April
    27
    2015

    Solving diminishing cooling capacity in Mazda3

    In the course of a longer journey in a Mazda3 (model year 2006 onwards ) with the air-conditioning running at full speed, it is possible that the cooling capacity of the air- conditioning system begins to diminish. Hella Ireland looks at possible reasons.

    February
    20
    2015

    Air Conditioning Compressors

    The AC compressor is driven by the engine via a poly-V-belt or multiple V-belts and compresses or pumps the refrigerant in the system. Hella Ireland explains, there are different types of compressors. Function The refrigerant coming from the evaporator is sucked into the compressor in the gaseous state at low temperature and low pressure, compressed …

    February
    19
    2015